rewrite url words

[mjsmitten]

My url's look like this //classifieds/search/region,something/

I want it to rewrite to //classifieds/state/something/

note: If i look at the url in the browser the words after "classifieds" are greyed.

my .htacces has this:

<IfModule mod_rewrite.c>
    RewriteEngine On    
    RewriteBase /
    RewriteRule ^index\.php$ - [L]
    RewriteCond %{REQUEST_FILENAME} !-f
    RewriteCond %{REQUEST_FILENAME} !-d
    RewriteRule . /index.php [L]
</IfModule>

My url's look like this //classifieds/search/region,something/

Apparently you doing something like this:

http://www.searchenginejournal.com/urls-and-seo/16417/

You can take a look at this code snippets:

http://www.sitepoint.com/forums/showthread.php?727232-Creating-a-URL-s-from-comma-delimited-field